envoyproxy/envoy

wasm: add option for restarting VMs on failure

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#16,726 opened on May 30, 2021

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area/wasmenhancementhelp wanted

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Description

sometime we might want to restart VMs as soon as they trapped so that they can minimize the impacts of, for example, bugs in their Wasm programs to incoming streams.

cc @PiotrSikora WDYT?

Contributor guide

Research direction
Examine the Wasm VM management code in Envoy to understand how VMs are currently created and destroyed, then implement a restart on failure option.
Tech stack
wasm
Domain
backendinfrastructure
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++WebAssemblyEnvoy
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40